| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.qpid.disttest.client.utils; |
| |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.never; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CancellationException; |
| |
| import org.apache.qpid.test.utils.QpidTestCase; |
| |
| public class ExecutorWithTimeLimitTest extends QpidTestCase |
| { |
| private static final int TIMEOUT = 500; |
| private static final Object RESULT = new Object(); |
| |
| private ExecutorWithLimits _limiter; |
| @SuppressWarnings("unchecked") |
| private Callable<Object> _callback = mock(Callable.class); |
| |
| @Override |
| protected void setUp() throws Exception |
| { |
| super.setUp(); |
| _limiter = new ExecutorWithTimeLimit(System.currentTimeMillis(), TIMEOUT); |
| } |
| |
| @Override |
| protected void tearDown() throws Exception |
| { |
| super.tearDown(); |
| if (_limiter != null) |
| { |
| _limiter.shutdown(); |
| } |
| } |
| |
| public void testCallableCompletesNormally() throws Exception |
| { |
| when(_callback.call()).thenReturn(RESULT); |
| |
| final Object actualResult = _limiter.execute(_callback); |
| |
| verify(_callback).call(); |
| assertEquals(RESULT, actualResult); |
| } |
| |
| public void testCallableThrowsException() throws Exception |
| { |
| when(_callback.call()).thenThrow(new Exception("mocked exception")); |
| |
| try |
| { |
| _limiter.execute(_callback); |
| fail("Exception not thrown"); |
| } |
| catch (CancellationException ce) |
| { |
| fail("Wrong exception thrown"); |
| } |
| catch (Exception e) |
| { |
| // PASS |
| } |
| verify(_callback).call(); |
| } |
| |
| public void testCallableNotRunDueToInsufficentTimeRemaining() throws Exception |
| { |
| long now = System.currentTimeMillis(); |
| ExecutorWithLimits shortTimeLimiter = new ExecutorWithTimeLimit(now - 100, 100); |
| try |
| { |
| shortTimeLimiter.execute(_callback); |
| fail("Exception not thrown"); |
| } |
| catch (CancellationException ca) |
| { |
| // PASS |
| } |
| finally |
| { |
| shortTimeLimiter.shutdown(); |
| } |
| |
| verify(_callback, never()).call(); |
| } |
| |
| public void testExecutionInterruptedByTimeout() throws Exception |
| { |
| Callable<Void> oversleepingCallback = new Callable<Void>() |
| { |
| @Override |
| public Void call() throws Exception |
| { |
| Thread.sleep(TIMEOUT * 2); |
| return null; |
| } |
| }; |
| |
| try |
| { |
| _limiter.execute(oversleepingCallback); |
| fail("Exception not thrown"); |
| } |
| catch (CancellationException ca) |
| { |
| // PASS |
| } |
| } |
| } |